Apparatus for making chilled iron castings



(No Model.) 2 Sheets-Sheet 1.y

A. K. BARKER. APPARATUS PoR MAKING' GHILLED IRON CASTINGS.

No. 602,714. lPabizented Apr. 19,1898.

E @y ma@ (No Model.) 2 Sheets-Sheet 2.

A. K. BARKER.

APPARATUS FOR MAKING GHILLBD IRON CASTINGS.V No. 602,714. Patented Apr.19,1898.

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UNTTEE STATES PATENT EETEE.

ALFRED K. BARKER, OF BOONTON, NEW JERSEY.

APPARATUS FOR MAKING CHILLED IRON CASTINGS.

SPECIFICATION forming part of LettersPatent No. 602,714, dated April 19,1898.

Application led August 21, 1896. Serial No. 603,552. (No model.)

T0 Coll whom, t may concern.-

Be it known that I, ALFRED K. BARKER, a citizen of the United States,residing at Boonton, in the county of Morris and State of New Jersey,have invented a new and useful Improvement in Machinery for MakingOhilled Iron Oastings,of which the following is a specification.

The object of my invention is the rapid production of castings of asimilar character, either chilled or partly chilled, and at a very lowcost.

My invention relates to that form of apparatus for making chilledcastings in which the mold-boxes are mounted upon a rotating frame andare cooled by water-jackets; and it consists in the peculiarconstruction and arrangement of parts, as will be hereinafter described,reference being had to the accompanying drawings, in which all lettersof reference refer to similar parts in all the figures.

Figure l is a plan View of the table with a box in position to be filledand one ready to be opened. Fig. 2 is a vertical elevation of the tablewith one box in position. Fig. 3 is a vertical cross-section of thetable and watersupply for chills and means for draining the same. Fig. 4is a perspective view of a chillbox opened and showing its construction.Fig. 5 is a cross-section of a box on line Z Z of Fig. 7. Fig. 6 is across-section of the box on line X X of Fig. 7. Fig. 7 is a longitudinalsection of the box on line Y Y of Fig. 5. Fig. 8 is a detail view of themechanism for raising and opening the upper halves of the boxes.

A, Fig. l, represents a circular horizontal table in four or more equalsections, bolted together and secured to a central spider B. The spiderB, Fig. 3, has a conical seat formed on the lower part of its hub, whichenters into and loosely engages a conical cavity formed in the upperpart of the central stand C, and the stand O being secured to afoundation forms a pivot or step for the table A to revolve upon in ahorizontal plane. A frame D, Figs. 2 and 3, composed of a number ofsections bolted together, surrounds the central stand O and is kepttogether in true alinement and concentric position by a number of radialrods D', tapped into the central stand O and adjustably secured bydouble nuts to the legs of the frame, which is also secured to afoundation by suitable bolts.

On the upper part of the circular frame D a table D2, Fig.'3, is formed,upon which a number of bearing-rollers E run and which support the outerpart of the table A and the chill molds or boxes N. The rollers E arepivoted in brackets on the under side of the table A. Formed on theouter circumference of the table are a number of recesses P, Fig. l, thesides of which are beveled and wider at the bottom than at the top, Fig.2, to receive and engage similar beveled projections P', formed on theunder side of the box N, Fig. 4.

Holes A', Fig. 2, are provided on the outer edge of the table A forcapstan-bars Zeg, Fig. l, used to move the table when required. Astop-pawl A2, Fig. 2, engaging a catch A3, locks the table in certainpositions when pouring the different boxes. There is a series of thesecatches'AS, one for each mold-box. A central water-main R, Fig. 3,provided with a stop-valve and secured to a central hub T by a packedgland g, supplies water to the radiating-tubes R' and rubber hose-pipesR2, with unions R3, which hose-pipes R2 extend to the water-spaces N2,Figs. 4 to 7, of the lower mold N' and alsoV to upper molds N5 N6. .Acircular trough WV, Fig. 3, located inside the framing D and concentricwith the stand O, receives and conducts the water to the circular drainW'.

At A4,' Fig. l, there is located a stand d, Figs. 3 and 8, secured to afoundation in the usual manner. Stand d is provided with an arm d', onwhich is pivoted the lever d2, the shorter end of which is pivoted to avertical lifting-bar cl3, which slides adjustably in the straps d4,secured to the frame or stand d. The upper part of the lifting-bar cl3is provided with the joints d5 d6, to which the arms d7 ZS are pivotallysecured, as shown in Fig. 8. A tension-spring e by its ends is securedto the arms d7 d8, near their lower ends, said arms being bowed to allowroom for the spring to work. The upper ends of each of the arms C17 d8are forked at di to engage the handle N7, Figs. 3 and 4, of the upperhalves N5 N6 of the chill-mold N. The chill-mold is formed in threeparts, Figs. 4, 5, 6 and 7,- the lower consistin g of a hollow box N',N2 representing the IOO water-space, and M the cavity to receive theobject to be cast, formed on its upper surface. Internal diverting-ribsff' are located in the water-space N2 and, extending nearly to thefront, Figs. 5 and 7, form a prolonged or tortuous circulation throughthe box. The upper halves N5 N6 are also hollow, the waterspaces N9 N1Obeing also divided by the ribs fZ f3 for prolonged circulation. An inletfor water k, Fig. 6, is provided in the lower box N', as are also twooutlets 75' 7a2, which by suitable nipples and flexible rubber tubes R4,Figs. 3 and 7, connect the water-supply by similar nipples to the inlets7c3 L34, Fig. 6, of the upper halves N5 N5. Outlets h5 k@ on theopposite side of the partitions f2 f 3 by similar nipples and rubbertube R5, Fig. 3, conduct the spent water into the circular trough W.

The under surfaces of the half-boxes N5 N6 are formed with half-cavitiescorresponding to the form of the object to be cast and registering withthose of the lower box N'. The parts N5 N6 are hinged to the box N' bythe hinges 19, Fig. 4, the lugs p' on the box N', Fig. 5, having theirupper edges p2 formed like a cam and having a pivot-pin p3 inserted insuitable holes. The lugs p4 on the upper halves N5 N6, Fig. G, areprovided each with an elongated hole p5 to loosely receive thepivot-pinp3, for a purpose that I will describe more fully hereinafter.

The upper halves N5 NG each are provided with half of a water-jacketpouring-passage N20, Fig. 5, forming when the box is closed a circularand double conical inlet opening downward into the body of the mold N'to the gates N12, Fig. 4. In the bottom mold-box N' in the cavity N13,Fig. 4, of the gates N12 a conical plug L, Figs. 5 and 7, is inserted,f1tting in the hole L', Fig. 4, in said cavity. The plug L is providedwith a hollow stem L2, Fig. 7, having at its lower end a threadedportion L3, which screws into a threaded portion of the lower box N', asshown in Figs. 5 and 7, being turned by its square end L4. I wouldmention this detachable plug L is for the purpose of renewal, as themolten metal falling directly into the cavity N13 is liable to soondestroy that part of the box and render the whole mold valueless.

I have preferably shown in the drawings a mold for sash-weights providedwith the usual prints for cores and the number or weight of the article;but other forms may be substituted-such as brake-shoes, stove-lids, &c.

I will now proceed to describe the operation of my improved apparatus.The surface of the table A being supplied with the requisite number ofboxes located in their several recesses P and secured thereby, water isturned on and flows through the central hub T and through the tubes andrubber hose R2 into the lower box N', circulating through the same, andthen out by the tube and rubber hose R4 into the upper halves N5 N6,where it circulates and discharges itself, heated and spent, by theoutlets 105 71:5 and rubber hose R5 into the trough YV, and thence'intothe drain IV. The table being locked by its pawl and catch A2 A3, moltenmetal from a ladle is poured in until the gate in the mold is filled,the metal being taken from a nearby cupola. An assistant, by acapstan-bar 7c3, inserted into the holes A', moves the table round onits center and friction-wheels until an empty box is opposite him. Theassistant then locks the pawl and catch and pours another casting, andso continues pouring one after the other boxes as the table is rotatedor as box after box comes before him. lVhen a sufficient number of boxeshave been filled for the first one filled to arrive at A4, Fig. 1, anassistant raises the upper halves N5 N5, thereby lifting the solidifiedcasting out of its bed by the conical form of the gate and also by theback edge of the upper halves N5 N6 of the box sliding upward on thecams p2, formed on the lugs of the lower box, the slot formed in thelugs of the upper boxes permitting the pin p3 to accommodate itself to adifferent alinemen t. This allows the upper halves N5 N6 to lift forsome space nearly vertical and prevents the edges of the mold-cavityfrom being injured. In this operation, which is performed while theopposite box is being poured, a man at this station depresses the leverd2 by its handle and forces upward the bar d3, carrying the two arms d?cl3, which, by their forked ends engaging the handle N7, raise the upperhalves and spread them outwardly as the box opens, putting the spring ein tension. Vhen the casting is lifted and the box opens, the bar Z3 islowered by the lever d3, and the spring e brings the two forked armsinto alinement with the handles of the next box as it comes round. AtA1, Fig. l, another man is stationed, who throws the box fully open andtakes out the hot casting with tongs. At AS a boy is stationed, whocleans and sweeps the surfaces of the faced parts of the box and mold.At A9 another man examines and closes up the box ready for pouring whenit arrives at the pouring-station. It will thus be seen that theoperation is nearly continuous, and the time allowed for lifting thecasting, taking out, cleaning the box, examining, and closing is onlythat given when the metal is being poured into another box, and theassistant then moves the table. It may also be seen that by means of theiiexible rubber tubes conveying the water to the interior of the boxesthe movement of the upper halves N5 N6 in opening and closing does notaect the continuity of the Water circulations and that the rotation ofthe table is provided for by the pipe R swiveling in the packed gland ofthe central hub T.

Having thus described my invention, what I claim as new, and desire tosecure byLetters Patent, is-

l. A machine for making chilled castings, consisting of a horizontalrotating table carrying chill-molds, a central water-supply with IOO IIO

branches leading to said molds, and a subjacent annular trough receivingthe discharge- `Water from all of the chill-molds substantially as andfor the purpose described.

2. In a machine for making chilled castings, the combination of ahorizontal rotating table, a series of chill-molds mounted thereon andmade in sections and having water-jacketed mold-cavities, radiatingwater-pipes leading to the several boxes and having a central hub, amain supply-pipe swiveling within said hub, flexible discharge-pipesfrom the several boxes, and an annular trough or water-receptaclearranged beneath the table and extending around its center and beneathall the drainage ends of the discharge-pipes from the boxessubstantially as and for the purpose described.

3. In a chill-mold, the combination of the lower half-box provided witha water-chamber having inlet and outlet openings, and having in itsupper surface a mold-cavity with a gate as described, lugs on each sideof said box having earns formed on the upper edges, upper box-sectionshaving mold-cavities in their under surfaces, said sections being formedin two halves and hinged to the sides of the lower box by lugs havingelon' gated holes for receiving the pivot-pin of said hinges, andWater-jacketed projections upon the adjacent edges of each upperbox-section conical in form, one half in each box, and arranged whenclosed vto form a water-cooled runner-opening, and a detachablewater-protected shield to receive the first contact of the metal poured,said shield being fitted into the gate-cavity formed in the lower boxand secured by screw threads substantially as shown and described.

4. In a machine for making chilled castings, the combination with ahorizontal rotary table, a series of mold-boxes fixed upon its peripheryand having each its upper portion made in two hinged sections withlifting pins or handles projecting therefrom, and forked lifting-arms,and a lever operating the same to act upon the pins or handles of themoldboxes and open the same substantially as and for the purposedescribed.

5. The combination with the horizontal rotating table, and its series ofmold-boxes having a two-part hinged upper section provided with liftingpins or handles, the forked arms Z7 cls connected by spring e, thevertical sliderod d3, stand d and lever cl2, substantially as and forthe purpose described.

6. A machine for making chilled castings, comprising a circular frame Dwith track on it Lipper surface, a central pivot-standard C, ahorizontal rotating table with central stepbearing, and subjacentrollers running on the track, Water-cooled chill-boxes detachably fixed'upon theouter periphery of the table, a central vertical water-supplypipe, a rotating hub moving with the table and swiveling about the lowerend of the supply-pipe, radiating-pipes connecting said hub to thechillboxes, and a subjacent annular Water-trough to receive the wasteWater from the chill-boxes, substanti ally as and for the purposedescribed.

' ALFRED K. BARKER.

Witnesses:

GEORGE W. BLANCHARD, JAS. H. Woorron.

